1047 - وَ سَأَلَ سَهْلُ بْنُ اَلْيَسَعِ أَبَا اَلْحَسَنِ اَلْأَوَّلَ عَلَيْهِ اَلسَّلاَمُ: عَنِ اَلرَّجُلِ يُصَلِّي اَلنَّافِلَةَ قَاعِداً وَ لَيْسَ بِهِ عِلَّةٌ فِي سَفَرٍ أَوْ حَضَرٍ فَقَالَ «لاَ بَأْسَ بِهِ.
Hadith.1047 - Sahl ibn al-Yas'a asked Abu Al-Hasan al-Awwal 
about a man who prays a voluntary prayer sitting while he does not have any illness, whether in travel or while at home.
Imam said: "There is no harm in that”.
